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Bishop, City of

Sewage treatment plant, Bishop, Texas. NPDES permit TX0023019, in force until Oct 16, 2028. Last 12 months: over a limit 45 times (last August 2026), 2 of 11 reports late. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 20 days after each period: form A monthly (15 values)
Renewal application due
Apr 19, 2028 · 180 days before expiry; your permit may set another date
Last report on file
August 2026
Oct 2024 – Sep 2025
62 values over a limit, 30 required values missing, 8 of 12 reports late

Last 12 months (Oct 1, 2025 – Sep 30, 2026)

All 45 values over a limit
Period endingParameterReportedLimitOver by
October 2025BOD, carbonaceous [5 day, 20 C], daily average34 mg/L≤ 30 mg/L13%
October 2025E. coli, daily average227.4 CFU/100mL≤ 126 CFU/100mL80%
October 2025E. coli, single grab sample416 CFU/100mL≤ 399 CFU/100mL4%
October 2025Nitrogen, ammonia total [as N], daily average6.8 mg/L≤ 6 mg/L13%
October 2025Oxygen, dissolved [DO], monthly minimum5.13 mg/L≥ 6 mg/L15%
October 2025Solids, total suspended, daily average92 mg/L≤ 90 mg/L2%
November 2025E. coli, daily average747.7 CFU/100mL≤ 126 CFU/100mL493%
November 2025E. coli, single grab sample1732.9 CFU/100mL≤ 399 CFU/100mL334%
November 2025Nitrogen, ammonia total [as N], daily average9.1 mg/L≤ 6 mg/L52%
December 2025E. coli, daily average2032.7 CFU/100mL≤ 126 CFU/100mL1513%
December 2025E. coli, single grab sample2419.6 CFU/100mL≤ 399 CFU/100mL506%
December 2025Nitrogen, ammonia total [as N], daily average18.9 mg/L≤ 6 mg/L215%
December 2025Nitrogen, ammonia total [as N], daily average21.9 lb/d≤ 16 lb/d37%
December 2025Nitrogen, ammonia total [as N], single grab sample20.8 mg/L≤ 15 mg/L39%
January 2026E. coli, daily average1837.3 CFU/100mL≤ 126 CFU/100mL1358%
January 2026E. coli, single grab sample2419.6 CFU/100mL≤ 399 CFU/100mL506%
January 2026Nitrogen, ammonia total [as N], daily average17.1 mg/L≤ 6 mg/L185%
January 2026Nitrogen, ammonia total [as N], daily average20.8 lb/d≤ 16 lb/d30%
January 2026Nitrogen, ammonia total [as N], single grab sample20.6 mg/L≤ 15 mg/L37%
February 2026BOD, carbonaceous [5 day, 20 C], daily average42 mg/L≤ 30 mg/L40%
February 2026E. coli, daily average127.6 CFU/100mL≤ 126 CFU/100mL1%
February 2026Nitrogen, ammonia total [as N], daily average6.1 mg/L≤ 6 mg/L2%
March 2026BOD, carbonaceous [5 day, 20 C], daily average38 mg/L≤ 30 mg/L27%
March 2026Solids, total suspended, daily average101 mg/L≤ 90 mg/L12%
April 2026E. coli, daily average269.5 CFU/100mL≤ 126 CFU/100mL114%
April 2026E. coli, single grab sample2419.6 CFU/100mL≤ 399 CFU/100mL506%
April 2026Solids, total suspended, daily average111 mg/L≤ 90 mg/L23%
May 2026BOD, carbonaceous [5 day, 20 C], daily average125.2 lb/d≤ 80 lb/d57%
May 2026BOD, carbonaceous [5 day, 20 C], daily average66 mg/L≤ 30 mg/L120%
May 2026BOD, carbonaceous [5 day, 20 C], single grab sample140 mg/L≤ 100 mg/L40%
May 2026E. coli, daily average205 CFU/100mL≤ 126 CFU/100mL63%
May 2026E. coli, single grab sample630 CFU/100mL≤ 399 CFU/100mL58%
June 2026BOD, carbonaceous [5 day, 20 C], daily average36 mg/L≤ 30 mg/L20%
June 2026E. coli, daily average130.3 CFU/100mL≤ 126 CFU/100mL3%
June 2026Oxygen, dissolved [DO], monthly minimum5.42 mg/L≥ 6 mg/L10%
July 2026BOD, carbonaceous [5 day, 20 C], daily average51.8 mg/L≤ 30 mg/L73%
July 2026E. coli, daily average193.1 CFU/100mL≤ 126 CFU/100mL53%
July 2026Oxygen, dissolved [DO], monthly minimum3.86 mg/L≥ 6 mg/L36%
July 2026Solids, total suspended, daily average97.6 mg/L≤ 90 mg/L8%
July 2026pH, maximum9.01 SU≤ 9 SU—
August 2026BOD, carbonaceous [5 day, 20 C], daily average62.3 mg/L≤ 30 mg/L108%
August 2026E. coli, daily average325.1 CFU/100mL≤ 126 CFU/100mL158%
August 2026E. coli, single grab sample560 CFU/100mL≤ 399 CFU/100mL40%
August 2026Nitrogen, ammonia total [as N], daily average6.2 mg/L≤ 6 mg/L3%
August 2026Oxygen, dissolved [DO], monthly minimum5.05 mg/L≥ 6 mg/L16%

Limits in force (15)

ParameterStatisticLimitMonths
Oxygen, dissolved [DO]monthly minimum≥ 6 mg/Lall year
pHminimum≥ 6 SUall year
pHmaximum≤ 9 SUall year
Solids, total suspendeddaily average≤ 90 mg/Lall year
Solids, total suspendeddaily average≤ 240 lb/dall year
Nitrogen, ammonia total [as N]daily average≤ 6 mg/Lall year
Nitrogen, ammonia total [as N]single grab sample≤ 15 mg/Lall year
Nitrogen, ammonia total [as N]daily average≤ 16 lb/dall year
Flow, in conduit or thru treatment plantdaily average≤ .32 MGDall year
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year
E. colidaily average≤ 126 CFU/100mLall year
E. colisingle grab sample≤ 399 CFU/100mLall year
BOD, carbonaceous [5 day, 20 C]daily average≤ 30 mg/Lall year
BOD, carbonaceous [5 day, 20 C]single grab sample≤ 100 mg/Lall year
BOD, carbonaceous [5 day, 20 C]daily average≤ 80 lb/dall year

How strict are these limits?

Cited limits by parameter: Texas's rules and the federal ones.

Check this month's numbers Email me before each report is due

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On EPA ECHO: Facility report · DMR history

Your permit document is the final word. As JSON: /api/v1/permits/TX0023019 · MCP: https://passage-data.com/mcp